Reactions of atomic transition-metal ions with long-chain alkanes

Journal of the American Society for Mass Spectrometry
R Chen, L Li

Abstract

Understanding metal ion interactions with long-chain alkanes not only is of fundamental importance in the areas of organometallic chemistry, surface chemistry, and catalysis, but also has significant implication in mass spectrometry method development for the analysis of polyethylene. Polyethylene represents one of the most challenging classes of polymers to be analyzed by mass spectrometry. In this work, reactions of several transition-metal ions including Cr+, Mn+, Fe+, Co+, Ni+, Cu+, and Ag+ with long-chain alkanes, C28H58 and C36H74, are reported. A metal powder and the nonvolatile alkane are co-deposited onto a sample target of a laser desorption/ionization (LDI) time-of-flight mass spectrometer. The metal ions generated by LDI react with the vaporized alkane during desorption. It is found that all these metal ions can form adduct ions with the long-chain alkanes. Fe+, Co+, and Ni+ produce in-source fragment ions resulting from dehydrogenation and dealkylation of the adduct ions. The post-source decay (PSD) spectra of the metal-alkane adduct ions are recorded. It is shown that PSD of Ag+ alkane adduct ions produces bare metal ions only, suggesting weak binding between this metal ion and alkane. The PSD spectra of the Fe+, ...Continue Reading

References

Jul 1, 1995·Journal of the American Society for Mass Spectrometry·M E Gimon-KinselD H Russell
Jun 1, 1993·Journal of the American Society for Mass Spectrometry·M S Kahr, C L Wilkins

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Citations

Jan 18, 2005·Journal of the American Society for Mass Spectrometry·Chanan SlusznyBasil J Nikolau
Mar 29, 2005·Journal of the American Society for Mass Spectrometry·Louis I GraceMattanjah S deVries
Nov 27, 2001·Journal of the American Society for Mass Spectrometry·R ChenL Li
Dec 31, 2002·Journal of the American Society for Mass Spectrometry·H C Michelle ByrdDouglas P Ridge
Nov 1, 2007·Chemical Communications : Chem Comm·William E Wallace
Jun 14, 2012·Rapid Communications in Mass Spectrometry : RCM·Esther LorenteRafael Kandiyoti
Jun 9, 2016·The Journal of Physical Chemistry. a·Ting ZhangSheng-Gui He
Mar 31, 2004·Rapid Communications in Mass Spectrometry : RCM·Pascal Gabriel Di CrocePaul Grange
Dec 3, 2016·European Journal of Mass Spectrometry·Peter C BurgersJohan K Terlouwc
Aug 28, 2001·Journal of Mass Spectrometry : JMS
May 12, 2007·Mass Spectrometry Reviews·Otilia MóJeanine Tortajada
Dec 21, 2005·Mass Spectrometry Reviews·Lorenza Operti, Roberto Rabezzana
Jan 1, 2010·Chemical Reviews·Jana Roithová, Detlef Schröder

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